Dental cabinet



(No Model.)

C. A. HERR; DENTAL CABINET.

No. 480,261. Patented Aug. 9, 1892.

UNITED STATES PATENT OFFICE.

CHRISTIAN A. HERB, OF OSBORN, OHIO.

DENTAL CABINET.

SPECIFICATION forming part of Letters Patent No. 480,261, dated August9, 1892. Application filed August 24, 1891. Serial No. 403,645. (ll Omodel.)

To all whom it may concern.-

Be it known that I, CHRISTIAN A. HERE, a citizen of the United States,residing in Osborn, in the county of Greene and State of Ohio, haveinvented certain new and useful Improvements in Dental Cabinets, ofwhich the following is a specification.

My invention consists in a new and im; proved cabinet for the use ofdentists or for any other use where a large variety of instruments arerequired to be stored, so that any one or more of them can beconveniently and quickly got at when required; and it will be fully andclearly hereinafter described and claimed, reference being had to theaccompanying drawings, in which I Figure 1 is a side elevation of thedevice complete, a portion of one of the lower bearing-supports being insection, so as to expose the lower supporting-pivot. Fig. 2 is a topplan view, some of the pivoted trays being turned outward fromtheirholding-case. Fig. 3 is a top plan view of the universal joint bywhich the outer tray may be moved laterally either Way or elevatedorlowered and secured in position. Fig. 4 is a vertical sectionalelevation showing the interior construction of the same.

In said drawings is represented a pivoted bracket consisting of twohorizontal framepieces 1 and 2, each rigidly secured to a verticalpivoted bar 3 or formed in one piece with it. (See Fig. 1.) The verticalsupporting-bar 3 is provided with tapering ends, the lower one of whichis shown at 3 by the broken section in Fig.1, both ends beingsubstantially alike. This bracket is intended to be supported by meansof socketed supportingpieces 4, in which the tapering ends fit, so as toallow it to be made to swing easily from side to side. The socketedpieces 4 may be secured by screws 4 either to the wall or to anysuitable point of support, so as to hold the bracket-frame securely andstill allow it to be moved to one side or the other. Within thisbracket-frame is secured a case 5 by means of metal pieces 5, (see Figs.1 and 2,) which are either a part of or rigidly secured to thehorizontal frame-bars 1 and 2 and to the case 5 by screws or bolts 6.This case is open at one side and is provided with a door 6, mountedthereon on hinges 7. At the outer end of the case 5 is a series of slots7, which cut into the center of the end of the case ora little beyondit. 1

At or near the outer ends of the horizontal bars 1 and 2 is pivoted aseries of arms 8 by means of a bolt 8, which passes down through theenlarged portions 9 of the arms 8, which enlarged portions are made toproject from each side far enough to keep the arms 8 the proper distanceapart and also to keep them in line and to preventany lateral up or downmovement. The bolt 8 passes down through the whole of the'portions 9 andthen into a screw-nut 9. (See Fig.1.) The top of the bolt is providedwith a thumb-nut 10,having an enlarged portion 10, which rests on top ofa projecting ing 11, (see Fig. 1,) so that by turning the thumb-nut 10the arms 8 may be tightened more or less, so that when turned they willstay at any point to which they may be moved.

At the outer end of each arm 8 is a knob 12, by which it is turned backand forth, and at the front ends of each of said arms is a forkedportion 12, between which is secured a tray 13 by means of rivets orscrews 13, which construction holds them rigidly in place. These traysare made sufficiently deep to hold dental or other instruments; but theseries may be made of different heights, so as to answer for large orsmall instruments, and are each of the proper size to allow them to beturned in place within the case (See dotted lines 14 in Fig. 2.)

From the above construction it will be seen that the trays 13 can beeasily turned into the case 5, either one or all, so that the operatorcan readily select and turn out the tray holding the instruments wanted,and where the trays are all within the case the door can be closed, soas to keep everything safely in place, and, if desired, a lock can beplaced upon the door in any well-known way to lock the cabinet whendesired.

To one end of one of thehorizontal bars 1 or 2 (to the lower bar 2,preferably) is rigidly attached to or forms a part with it a ring 15,and within the ring 15 is nicely fitted a holding portion 15, so thatits lower portion 16 (see Fig. 4) will turn easily thereon. At the topof the part are two upright pieces 17, and at the bottom is adownwardly-projecting screw portion 18, (see Fig. 4,) onto which isscrewed a lower portion 18, which holds the ring portion 15 securely inplace and allows the parts 16 and 18 (shown in Fig. 4) to turn freelytherein. At the bottom of the portion 18 is rigidly secured or formed inone part with it two downwardly-projecting pieces 17, similar to theholding-pieces 17, and to the holding-pieces 17 and 17 are pivoted bypins 19 two parallel rods 20 20, having their opposite ends pivoted bypins 21 to a vertical rod 21, having an enlarged socketed portion 22,(see Fig. 1,) in which is placed a tray 22, havingadownwardly-projectingholding-pin 23, adapted to pass down into and fit the socket in thesocketed portion 22, thereby making the tray 22 easily removable for thepurpose of cleaningor other purposes. In the part 15,between the twoholding-pieces 17, is a hole, in which is placed a spiral spring 23.(See Fig. 4.) Above the spiral spring is fitted a ratchetpawl 24,adapted to slide up or down in the hole and having a thumb-piece 24, bywhich it is operated. The pawl 24 is adapted to engage with the teeth 25(also shown in Fig. 4) in the pivoted end of the bar 20.

From the above construction it will be seen that the tray 22 can beturned either to one side or the other or elevated or lowered andfastened at any desired point in its vertical adjustment. (See dottedlines 26 in Fig. 1.)

I claim as my invention- 1. In a dental cabinet, the combination of aseries of trays provided with handles or arms extending outward, eachhaving an enlarged portion 9 at its pivotal center and adapted to lie ina line one above the other,

a pin or bolt 8, passing down through the portions 9, and upper andlower supports 1 and 2, to which the whole are secured together,substantially as above described, a case provided with openings 7 forallowing room for the arms as the trays are swung into it, anda hingeddoor for inclosing the trays when 1n place within the case, wherebyeither one or more or all of the trays may be conveniently turnedoutward when required, as above set forth. I

2. In a dental bracket consisting of a pivoted main bracket carrying aninclosing case and a series of pivoted horizontally-swinging trays, thecombination therewith of a universal joint consisting of a ringprojecting from the main bracket, an upper portion having a shankadapted to fit and turn in the ring and having two upwardly-projectingportions 17, a lower portion constructed to screw onto the upper portionand inclose the ring and having two downwardly-projecting portions 17 anupper supplementary bracket-arm pivoted between the upper portions 17,having ratchet-teeth on its pivoted end, a spring-actuated pawl forholding it in its upward adjustment, a means for releasing the pawl fromits engagement with the teeth and having its opposite end pivoted to avertical bar 21, carrying a tray, and a lower supplementary bracket-armpivoted between the lower portions 17 and having its opposite endpivoted to the bar 21, so as to be parallel with the upper supplementaryarm, for the purpose set forth.

CHRISTIAN A. HERB. Witnesses:

ELI I-IERR, H. C. HERB.

